摘要
目的提高多出口校园网的利用率和可靠性.方法针对多出口校园网的需求和存在的问题,以三出口为例给出了使用HSRP协议和SLAs功能实现多出口校园网优化设计.合不同ISP的服务特点和校园网实际情况,提出使用策略路由和NAT地址转换的技术,并结合策略DNS实现对外服务流量的负载均衡方案设计.结果该设计方案整合了CERNET和本地ISP的网络资源优势,实现了链路的自动备份和故障自愈,解决了目前多出口校园网存在的各种问题.结论经过在青海广播电视大学一段时间的试运行,证明了基于该设计方案的多出口园区网的稳定性、可靠性和高效性.
Objective To improve the efficiency and reliability of multi-homing campus networks.Method Based on the demand and issue of multi-homing campus network,combined with the characteristic of ISP and the fact of campus networks,the paper gives the scheme of integrating PBR,NAT and policy DNS,HSRP and SLAs,and achieves traffic load-balance.Results The paper realizes auto-backup and transparent fail-over and resolves the issues of multi-homing campus network by combining the resources of CERNET with local ISPs.Conclusion The campus network based on this design is proved to be steady,efficient and reliable after testing for some time in Qinghai broadcast and TV university.
出处
《河北北方学院学报（自然科学版）》
2008年第A03期49-52,共4页
Journal of Hebei North University:Natural Science Edition
基金
青海省科技厅资助项目(2007-G-544)
